Hi Emil,

On Tuesday, 4 September 2018 16:21:49 CEST you wrote:
> > ssh different-machine.somewhere
> > 
> > Then you will see that you are not added to the card0 acl as you are not
> > logged to any console.
> 
> Ouch, I should have noticed the "rw" for "other" of your render node.
> Looking at a Arch, Debian, Fedora and Ubuntu box -  they all use 0660
> for both card and render nodes.
> Which would explain why your described use case was not working, here ;-)
> 
> Out of curiosity: you change that locally or it's a distro choice -
> which distro is that?

I have been tracking down to systemd's git at
https://github.com/systemd/systemd.git:

commit 4e15a7343cb389e97f3eb4f49699161862d8b8b2
Author: Tom Stellard <tstel...@redhat.com>
Date:   Tue Oct 31 08:46:24 2017 -0700

    udev-rules: Permission changes for /dev/dri/renderD*
    
    - Remove the uaccess tag from /dev/dri/renderD*.
    - Change the owning group from video to render.
    - Change default mode to 0666.
    - Add an option to allow users to set the access mode for these devices at
    compile time.

... which pretty much makes perfect sense to me given the idea of render 
nodes.
... did I mention that already?
:-)

I run currently on fedora-28 which runs
systemd-udev-238-9.git0e0aa59.fc28.x86_64
as rpm package.

> That said, v2 opens the render node directly, so it should work on your end.
> Just double-checking the crash is gone and I'll send them out.

Great!!

best
Mathias


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